Electric mobility vehicle

The electric mobility vehicle addresses the issue of inclining behavior during turns by using swing bases with a biasing member and swing control portion, achieving enhanced stability and comfort through a nonlinear spring system and swing control mechanism.

US20260115062A1Pending Publication Date: 2026-04-30WHILL
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Patent Information

Application Number
US19/472216
Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
Priority Date
2023-09-12
Filing Date
2024-08-30
Publication Date
2026-04-30

AI Technical Summary

Technical Problem

Conventional electric mobility vehicles with soft suspension characteristics and increased swingable range in the up-down direction improve ride comfort but are prone to inclining behavior during turns or pivots.

Method used

The electric mobility vehicle incorporates a pair of swing bases with a biasing member applying a downward force and a swing control portion that limits or restrains different-direction swings of the swing bases, using a nonlinear spring system to adjust suspension stiffness based on passenger weight and incorporating a swing control mechanism to stabilize the vehicle posture during turns.

Benefits of technology

The solution effectively reduces tilting behavior during turns, enhances passenger comfort, and improves running performance by stabilizing the vehicle posture and reducing roll angles, while maintaining a compact and durable design.

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Abstract

An electric mobility vehicle at least including a pair of wheels and a vehicle body frame, including a pair of swing portions, wherein a base end side of each swing portion is supported on the vehicle body frame so as to be swingable in an up-down direction about a swing axis extending in a vehicle front-to-rear direction, and each wheel is supported on each swing portion so as to move in the up-down direction together with a leading end side of each swing portion, a biasing member that applies a downward force to each swing portion when the leading end side moves upward, and a swing control portion that restrains a different-direction swing in which one of the base end sides of the pair of swing portions swings in a direction different from the other in the up-down direction or limits the different-direction swing to a predetermined range.
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